SeaWorld Orlando officially announced today the closure of the Clyde and Seamore Take Pirate Island show through the park's official Facebook page:

"After 15 years of hilarious hijinks and pinniped pranks, SeaWorld Orlando’s Clyde and Seamore Take Pirate Island sails into the sunset, with its last show on August 10, 2014. Join us over the next two weeks as we say farewell to the longest-running show in SeaWorld history." The theme of the new show should be revealed soon.